CN2511335Y - Multi-stage pressure varying extinguishing pump for non-pressure reduction watersupply - Google Patents
Multi-stage pressure varying extinguishing pump for non-pressure reduction watersupply Download PDFInfo
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- CN2511335Y CN2511335Y CN 00241383 CN00241383U CN2511335Y CN 2511335 Y CN2511335 Y CN 2511335Y CN 00241383 CN00241383 CN 00241383 CN 00241383 U CN00241383 U CN 00241383U CN 2511335 Y CN2511335 Y CN 2511335Y
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Abstract
A multi-stage pressure varying extinguishing pump for non-pressure reduction watersupply is an electric equipment used for water supply for fire protection in high-rise building. The prior water supply for fire protection, which depends on the water pump to output a single water pressure undergoing multi-stage pressure reducing regulators, has poor systematic efficacy, low efficiency, but high cost. The utility mode is provided with multi-stage impeller pump sections, and a pressure-division water-exit section is arranged for a stage or between every two steps, wherein, the water-exit section comprises a water outlet chamber and an outlet, each outflow tube is provided with an electromagnetic valve, the start command sent by the pressure-division area firstly opens the corresponding electromagnetic valve of the outflow tube, and then starts the pump to accomplish the multi-stage pressure varying output, thereby the pressure reducing regulators are abrogated. The utility model has simple structure, high reliability, low cost, high efficiency with economized energy, thereby being a fire-protection water-supply electric equipment with high techniques, wide applicable field, and strong vitality.
Description
No pressure-reducing valve fire fighting supply stage variable pressure fire pump is a high building fire fighting water supply electromechanical equipment technical field.Fire pump in the combination of original multiple impeller pump joint is only exported on the basis of single hydraulic pressure, it is by being provided with a plurality of dividing potential drop water outlet joints in the multiple impeller pump joint, the output of realization stage variable pressure, satisfying divides the needs of nip pressure of supply water to supply water by the skyscraper floor, make its cancellation multi-step pressure reduction valve, reach the performance and the reliability that improve fire fighting supply, reduce the investment of pipe network equipment and tubing, improve the effect that the operational efficiency saves energy consumes.
Known to the inventor, existing high building fire fighting supplies water, and is the single hydraulic pressure of fire pump output and supplies water through the step-down of multi-step pressure reduction valve.The output pressure of water pump determined by the required pressure of uppermost storey, as not adopting pressure-reducing valve, in low floor will substantially exceed the operating pressure that needs.The way of supplying water of existing fire hydrant is established two delivery mains (the using and the reserved) from the fire hydrant pump discharge, and mother's pipe of high floor is delivered at the water source, upwards tells arm from mother's pipe, supplies water to the fire hydrant of high several floors without pressure-reducing valve; Manage from mother and to tell arm downwards, through multistage more than ten to dozens of pressure-reducing valve connection in series-parallel step-down in the fire hydrant of low floor supply water.Existing spray quench way of supplying water is established a delivery main from the spray pump outlet central fire control point is delivered at the water source, delivers to the spray head pipe network of each floor subregion after several pressure-reducing valve step-downs again.The problem that existing fire pump supplies water and exists: 1, pressure-reducing valve had not only reduced pressure but also current limliting, and a pressure-reducing valve is compared with the water pipe with caliber, reduces flow 40-50%, has reduced the design standard of fire fighting supply amount, has reduced the performance and the reliability of fire fighting supply; 2, pressure-reducing valve quite a lot is set, increases the bigger investment of fire-fighting equipment; 3, fire hydrant supplies water, by low layer to high-rise, again by high level to low layer, so come and go and supply water, water main need increase by 80% tubing consumption; 4, increased the loss of pressure-reducing valve and pipeline, water application efficiency is low, energy consumption is high.Because there are the problems referred to above in existing fire fighting supply, thereby, further impel the inventor to go the method for seeking to address these problems, starting point of the present invention that Here it is.
Adopt the method for electric machine speed regulation, also can solve the problem that above-mentioned fire fighting supply exists, and pump motor speed governing cost is very high, poor reliability is in not running status for a long time, and electric machine speed regulation is not suitable for being used for waterworks for firefighting.The purpose of this utility model be to design a kind of simple in structure, reliability is high, cost is low, performance reaches the high no pressure-reducing valve stage variable pressure fire pump water system of water application efficiency well, only exports the subregion decompression water system that single pressure is made up of the multi-step pressure reduction valve with the fire pump that replaces present employing.
Existing fire pump, all are needs by lift, be connected into whole multistage fire pump by single vane pump joint, 150DA160-8 * 20 pump types for example, total (pumping) head is 160 meters, is to be that 20 meters vane pump joint assembles by every grade of lift of 8 grades of pumps joints, its connected mode is for adopting the pull bar crimping, water pump is only exported single discharge pressure, through the step-down of multi-step pressure reduction valve, to the fire hydrant and the spray head pipe network water supply of skyscraper each minute nip.Design philosophy of the present utility model is, in above-mentioned original multiple impeller pump, save every dividing potential drop water outlet of 1-2 level impeller of pump joint installing, every fraction press pump is made up of 1-2 impeller of pump joint and a dividing potential drop water outlet joint, profile is cylindrical, first order pump is located at an end of water inlet, and multistage minute press pump after second is connected successively and is located at the right side, and dividing potential drop water outlet joint is located at the right side of every grade of impeller of pump joint, and is connected with impeller of pump joint, realize that stage variable pressure exports.Dividing potential drop water outlet joint is made of with shell water outlet cavity and delivery port, and it is cylindrical that profile and impeller of pump joint are all mutually, and delivery port is located at the positive side of dividing potential drop water outlet joint, and the water outlet joint saves with impeller of pump and is connected, and connected mode is the crimping of employing pull bar.The delivery port of dividing potential drop water outlet joint is connected with the dividing potential drop outlet pipe, and the other end of outlet pipe is connected with female pipe.Magnetic valve of every outlet pipe installing, magnetic valve is in normally off, the skyscraper floor divides nip to send manually and the instruction of automatic turn on pump, open the outlet pipe magnetic valve that floor divides the nip correspondence earlier, the back starts water pump, when the tripping of main pump fault, the delayed startup stand-by pump, close magnetic valve after the termination of pumping, realize supplying water by the stage variable pressure that needs of subregion pressure, thus cancellation multi-step pressure reduction valve and significantly reduce the length of water main.
Below in conjunction with drawings and Examples, the utility model is further described:
Fig. 1,2, the 3rd, the embodiment of the no pressure-reducing valve fire fighting supply stage variable pressure fire pump of 150DA160-8 * 20 pumps.Fig. 1 is the supply-water pump schematic diagram; Fig. 2 is Fig. 1 pump housing normal cross-section structural map; Fig. 3 is Fig. 1 dividing potential drop water outlet joint side view.Among the figure: 1, impeller of pump joint 2, dividing potential drop water outlet joint 3, dividing potential drop delivery port 4, dividing potential drop outlet pipe 5, dividing potential drop outlet pipe magnetic valve 6, the female pipe 7 of water supply, water main 8, water inlet 9, pump housing connecting rod 10, pump shaft 11, motor shaft 12, pump housing shell.
Among Fig. 1,2,3 embodiment, water pump is the level Four transformation, every grade of pump saves (1) by two impellers of pump and forms with a dividing potential drop water outlet joint (2), profile is cylindrical, first order pump is located at an end of water inlet (8), second is connected successively to fourth stage pump is located at the right side, and dividing potential drop water outlet joint (2) is located at the right side of every grade of impeller of pump joint (1), and is connected with impeller of pump joint (1).Dividing potential drop water outlet joint (2) is made of with shell (12) water outlet cavity and delivery port (3), and dividing potential drop delivery port (3) is located at the positive side of dividing potential drop water outlet joint (2).The connected mode of impeller of pump joint (1) and dividing potential drop water outlet joint (2) adopts pump housing cylinder lever connecting rod (9) crimping.The dividing potential drop delivery port (3) of dividing potential drop water outlet joint is connected with dividing potential drop outlet pipe (4), and the other end of dividing potential drop outlet pipe (4) is connected with the female pipe (6) that supplies water.Installing magnetic valve (5) in the dividing potential drop outlet pipe (4).Water inlet (8) is installed in the left side of first order impeller of pump joint.The control of magnetic valve (5), different with existing Firefighting Pump Control mode is, and existing fire pump has only an outlet pipe, and installing is hand sluice valve in the outlet pipe, and gate valve is in normally open, and all turn on pumps of sending instructions are across-the-line starting pump machine.The utility model, outlet pipe magnetic valve (5) is a normally off, and the outlet pipe magnetic valve that floor divides the nip correspondence is opened in all turn on pump of sending instructions earlier, and the back starts the pump machine, closes magnetic valve after the termination of pumping, realizes that the selection stage variable pressure of required pressure supplies water.
The pressure water-supply system single with existing fire pump output compares, and the utlity model has following advantage and benefit:
1, performance is good, the reliability height.Existing fire pump is exported the multi-step pressure reduction valve supply water system of single pressure, and its pressure-reducing valve has the effect of current limliting, relatively reduces flow output 40-50% with water pipe with caliber, thereby has reduced the design standard of output, has reduced the performance of waterworks for firefighting.The utility model, water-supply-pipe flow do not have the pressure-reducing valve loss, and pipeline is short, and loss is few, and design discharge is unaffected, thereby has improved the performance and the reliability of fire fighting supply.
2, reduced investment.With the four-star hotel in certain city is example, high 28 layers, about 40,000 square metres of construction area.Adopt two of fire hydrant pumps (150DL-7 * 25 meter); Two of spray pumps (100DL-9 * 20 meter); 20 on pressure-reducing valve, with the utility model relatively, the equipment and materials that the former need increase: 20 on pressure-reducing valve, with 60 on the supporting gate valve of pressure-reducing valve, 180 meters of φ 150 steel pipes.φ 150 pressure-reducing valves amount to 360,000 yuan by 1.8 ten thousand yuan every (the imperial valve price at factory is preced with in Shanghai); Every on gate valve amounts to 30,000 yuan by 500 yuan; 180 meters of φ 150 steel pipes are counted 20,000 yuan; More than three add up to 410,000 yuan; Installation fee is ten thousand yuan of 41 * 0.08=3.28 by 8%; Amounting to engineering cost is ten thousand yuan of 41+3.28=44.28.Every pump of the utility model need increase by three at water outlet joint, and every is ten thousand yuan of 30,000 yuan * 0.4=1.2 by increasing cost 40%, and four is 4.8 ten thousand yuan; Increase by 16 of magnetic valves, compare with gate valve, every price difference amounts to ten thousand yuan of 4.8+1.6=6.4 by 1000 yuan.Two compare, and the utility model can be saved about 400,000 yuan of investments.
3, running efficiency of system height, energy consumption is low, but saves energy surpasses 40% during operation.
The utility model is the high building fire fighting water work, the content height that possesses skills, the product that practicality is wide, vitality is strong.
Claims (2)
1. save the no pressure-reducing valve fire fighting supply stage variable pressure fire pump that constitutes by a plurality of dividing potential drop water outlet joints and multiple impeller pump, it is characterized in that:
A kind of no pressure-reducing valve fire fighting supply stage variable pressure fire pump, tie up in original fire-fighting multistage pump, every dividing potential drop water outlet joint of 1-2 impeller of pump joint installing, realize multistage dividing potential drop, every fraction press pump is made up of 1-2 impeller of pump joint and a dividing potential drop water outlet joint, and profile is cylindrical, first order pump is located at an end of water inlet, multistage minute press pump after second is connected successively and is located at the right side, and dividing potential drop water outlet joint is located at the right side of every grade of impeller of pump joint, and is connected with the impeller of pump joint.
2, no pressure-reducing valve fire fighting supply stage variable pressure fire pump according to claim 1, it is characterized in that: dividing potential drop water outlet joint is made of dividing potential drop water outlet cavity and dividing potential drop delivery port and shell, the dividing potential drop delivery port is located at the positive side of dividing potential drop water outlet joint, and the dividing potential drop delivery port is connected with the dividing potential drop outlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00241383 CN2511335Y (en) | 2000-06-24 | 2000-06-24 | Multi-stage pressure varying extinguishing pump for non-pressure reduction watersupply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00241383 CN2511335Y (en) | 2000-06-24 | 2000-06-24 | Multi-stage pressure varying extinguishing pump for non-pressure reduction watersupply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2511335Y true CN2511335Y (en) | 2002-09-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00241383 Expired - Fee Related CN2511335Y (en) | 2000-06-24 | 2000-06-24 | Multi-stage pressure varying extinguishing pump for non-pressure reduction watersupply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2511335Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089795A (en) * | 2016-06-20 | 2016-11-09 | 江苏大学 | A kind of three operating mode even running centrifugal pump structure and methods for designing thereof |
| CN111273597A (en) * | 2020-01-24 | 2020-06-12 | 西南石油大学 | Centralized monitoring and inspection system for fire-fighting facilities |
-
2000
- 2000-06-24 CN CN 00241383 patent/CN2511335Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089795A (en) * | 2016-06-20 | 2016-11-09 | 江苏大学 | A kind of three operating mode even running centrifugal pump structure and methods for designing thereof |
| CN111273597A (en) * | 2020-01-24 | 2020-06-12 | 西南石油大学 | Centralized monitoring and inspection system for fire-fighting facilities |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |